Durant, W.S.; Craig, D.K.; Vitacco, M.J. & McCormick, J.A. Adverse experiences with nitric acid at the Savannah River Site, report, June 1, 1991; (https://digital.library.unt.edu/ark:/67531/metadc1092362/m1/1/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .